I would love to see the Sketchpad sketches that students in Keith's classes are producing not to mention interesting ones from other people. I would also be happy to share some of my own. For example, I have Sketch with my solution to the maximum-goal-angle hockey problem (posted earlier) that documents the discovery process I went through, that is, what conjectures I made initially, and found to be false, before finding one that worked. I also have Sketches for potential solutions for the dog-pen problem (also posted earlier), an elevator door mechanism simulation, a dynamic illustration of trig functions, ...
The question is: Is there a format (e.g., BinHex) that we can all use and agree on to exchange Sketches? As a fringe benefit doing this could also be useful for posting files from other non-text software (e.g., MS Word, MacDraw, ...).
I've been using the Macintosh Desk Accessory (DA) called BinHqx 1.0 for this purpose. It's available as ShareWare (I just sent off my $5 to "register" my copy).
Keith: Can you get files from your mail reader to your Mac? Do you have the BinHqx DA or something else that can decode files encoded in BinHex 4.0 format? Would you like to be able to do this?
Would other people be interested in the ability to exchange Sketchpad files, etc. over the network? By the way, I've found it quite useful in doing research collaborations to be able to send MS Word documents back and forth across the net.